A Process Fusion Approach for MPI Performance Enhancement on Multi-core Systems

With the growing popularity of multi-core technology, traditional MPI programs are facing great challenges in fully exploit the computing power of this kind of chipsets. In this paper, we change the run time orgnaization of a MPI program and use some newly designed communication methods to enhance the performance of MPI programs on a multicore system without changing the code. We have evaluated the test results and the potential "side effects'' of this technique is discussed in the paper as well. The remarks on the related and possible future research work is also given in the end of the paper.